Portable steam-boiler.



E..P. SELDEN & H. S. P ELL, JR.

PORTABLE STEAM BOILER.

APPLICATION FILED MAY 25, 1915.

Patented Sept. 12, 1916.

EE TEE sTATEs PATENT oEEioE.

EDWARD P. SELDEN, OF ERIE, AND HARRY 'S. PELL, JR., OF EAST MILLCREEK TOWN- SHIP, ERIE COUNTY, PENNSYLVANIA, ASSIGNORS TO ERIE CITY WORKS COMPANY, OF ERIE, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

PORTABLE STEAM-BOILER.

Specification of Letters Patent. Patented Sept. 12, 1916.

Application filed May 25, 1915. Serial No. 30,423. i Y

b all whom it may concern Be it known that we, EDWARD P. SELDEN and HARRY S. PELL, Jr., citizens of the United States, residing in Erie and East Millcreek township, respectively, county of Erie, and State of Pennsylvania, have invented new and useful Improvements in Portable Steam-Boilers, of which the following is a specification.

This invention relates to portable steam boilers and consists in certain improvements in the construction thereof as will be hereinafter fully described and pointed out in the claims.

More particularly the invention relates to the lining for a furnace for an upright cylindrically-shaped portable boiler.

The invention is illustrated in the accomaan in drawin s as follows v a b Figure 1 shows a vertical section on the lines 11 in Fig. 2. Fig. 2 a section on the line 22 in Fig. 1. Fig. 3 a section on the line 33 in Fig. 1. Fig. at a perspective view of one of the bricks forming the lining. Fig. 5 a. perspective view of the top layer of the bricks of the lining.

1 marks the shell of the boiler, 2 the top flue sheet, 3 the bottom flue sheet, and 4 the flues. The boiler shell is continued with a cylindrical furnace shell 5 surrounding the boiler furnace 6. The furnace is provided with the usual grate 7 and opening 8.

The lining is formed of brick having an outer surface preferably flat so that their outer surfaces are of a contour varying from the contour of the cylindrical shell so as to form insulating spaces between the outer faces of the brick and the shell. Preferably the bricks have their outer surfaces 10 flat and this in conjunction with the curve of r the shell forms the insulating spaces. The

bricks are also preferably formed with their ends 11 at right angles to their outersurfaces and when assembled in the shell this leaves prism-shaped spaces between the ends of the bricks which also insulate the shell. The bricks are provided with the notches 12 in their ends and the rods 13, preferably in the form of pipe extend vertically through the lining and are arranged in these notches thus keying the bricks in place. Vashers 14 are arranged on the upper ends of the rods and heads or nuts 15 are arranged on the rods above the washers. The lower ends of the rods extend through an angle iron 16 which 1s arranged around the bottom of the shell and forms a support for the lining.

when released, the ends abutting preventing the collapsing of the ring. It'will be noted that the ring engages the nuts 15 and thus when in place forms a support for the upper ends of the'rods holding them in place. It will be understood that this lining is subj ected to its greatest strain sofar as displacement is concerned in the shipping of the boiler and the ring 20 is particularly efl'ective while theboiler is beingshipped.

The tie rods clamp the brick on the supporting flange and in this respect assist in holding the lining in place for shipping purposes. 7'

The spaces between the'points of contact allow the shell to go and come. The freedom of expansion is particularly desirable where the shell is in continuation of the boiler, as the boiler is thus relieved of any strains from this source.

What we claim as new is 1. In a portable steam boiler, thecombination of a Vertical boiler shell cylindricallyshaped and extended downwardly to form a furnace shell below the boiler; and a lining for the furnace shell formed of bricks having their outer surfaces of a contour differing from the shell and contacting with the shell at points throughout the circumference thereof to form insulating spaces between the outer surfaces of the bricks and the furnace shell.

2. In a portable steam boiler, the combination of a vertical boiler shell cylindricallyshaped and extended downwardly to form a furnace shell below the boiler; and a lining for the furnace shell formed of bricks in contact with the shell having their outer surfaces fiat to form spaces between said outer surfaces and the furnace shell.

3. In a portable steam boiler,the combination of a vertical boiler shell cylindrically shaped and extended downwardly to form a furnace shell below the boiler; and a lining for the furnace shell formed of bricks in contact with the shell having their outer surfaces flat and their end surfaces at-right angles to the outer surfaces forming insulating spaces between the bricks and the shell.

4. In a portable steam boiler, the combination of a vertical boiler shell cylindricallyshaped and extended downwardly to form a furnace shell below the boiler; a lining for the furnace shell formed of bricks having their outer surfaces of a contour differing from the shell and contacting with the shell at points throughout the circumference thereof to form insulating spaces between the outer surfaces of the bricks and the furnace shell; and locking devices arranged at the ends of the bricks.

5. In a portable steam boiler, the combination of a vertical boiler shell cylindricallyshaped and extended downwardly to form a furnace shell below the boiler; a lining for the furnace shell formed of bricks in contact with the shell having their outer surfaces flat and their end surfaces at right angles to the outer surfaces forming insulating spaces between the bricks and the shell; and locking devices arranged between the ends of the bricks.

6. In a portable steam boiler the combination of a vertical boiler shell cylindricallyshaped and extended downwardly to form a furnace shell below the boiler; a lining for the furnace shell formed of bricks having their outer surfaces of a contour differing from the shell to form spaces between the outer surfaces of the bricks and the shell,

said bricks having notched ends; rods extending vertically through the openings formed by said notched ends for keying the bricks in place; a head on the upper ends of the rods; a washer between the head and the bricks; and means for tightening the rods at the bottom thereof.

7. In a portable steam boiler of the vertical flue type, the combination of a vertical boiler shell cylindrically-shaped and extended downwardly to form a furnace shell below the boiler; a lining for the furnace shell formed of bricks; vertical tie-rods extending upwardly through the lining; and a collapsible ring arranged on the upper course of bricks and forming a support for the upper ends of the tie rods.

8. In a portable steam boiler the combination of a vertical boiler shell cylindricallyshaped and extended downwardly to form a furnace shell below the boiler; a lining for the furnace shell formed of bricks in contact with the shell having their outer surfaces flat and their end surfaces at right angles to the outer surfaces forming insulating spaces between the bricks and the shell said bricks having notches in their ends; and rods arranged in the spaces between the ends of the bricks and extending into said notches for tying said bricks in place.

In testimony whereof we have hereunto set our hands in the presence of two sub scribing witnesses.

EDWARD P. SELDEN. HARRY S. PELL, JR. I'Vitnesscs B. M. HARTMAN TrIoMAs C. MILLER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner 01' Patents Washington, D. G. 

